Case for vacuum-receptacles.



W. SIMPSON.

CASE FOR VACUUM RECEPTACLES. APPLICATION FILED. OCT. 9. 1915.

WITNESSES:

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EZZZM INVENTOR. \Nl'Z/lfierl Simpsm:

A TTOR NE Y.

Patented July 11, 1916.

UNITED STATES PATENT OFFICE.

WILLIBERT SIMPSON, OF OTTAWA, ONTARIO, CANADA, ASSIGNOR T0 LANDERS, FRARY 8c CLARK, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

CASE FOR VACUUM-RECEPTACLES.

To all whom it may concern: I I

Be it known that I, WILLIBERT SIMPSON, a subject of the King of England, and resident of Ottawa, Province of Ontario, Do-

minion of Canada, have invented certain new and useful Improvements in Cases for Vacuum-Receptacles, of which the following is a specification.

The object of this invention is to produce a device of the character described having features of novelty of advantage.

The invention relates particularly to a case closed at the bottom and open at the top, and with a novel arrangement andv means for securing the sleeve and cap in position, with special reference to the protection of the case from the entrance of liquids.

The drawing is a central vertical section of a case with the sleeve and cap-shown separated therefrom, the vacuum receptacle being shown in side elevation.

In the drawings, a denotes the case which is tubular and closed at the bottom, the case being conveniently formed by cupping and drawing operations which provide an integral structure. The vacuum receptacle b which is customarily made of glass or other fragile material is insertible from the top of the case and iscarried in a resilient support or spacer to guard it against breakage from shocks. At the upper end of the case two screw threadsare formed, of two different diameters, the lower thread 0 being of greater diameter than the upper thread d. By preference the threads are arranged as shown, formed in the metal of the case, and the smaller immediately above the larger.

0 denotes a sleeve apertured at its end to receive and engage the mouth of the receptacle, the lower edge of the sleeve being threaded for engagement with the upper and smallerthread d on the case, A point to which I desire to call particular attention is the fact that by preference the sleeve 6 which acts to hold the receptacle n place,

overlies the thread d in order to prevent the v entrance of liquids into the case.

f denotes a cap inclosing the sleeve 0 and threaded at its lower edge to engage the lower and larger thread a. Bv this con- Specification of Letters Patent.

' Patented July 11, 1916.

Application filed October 9, 1915. Serial No. 54,997.

end a plurality of exterior threads of different diameters, a vacuum receptacle located therein, a sleeve having threaded engagement with the thread of smaller diameter and apertured at its upper end to engage said receptacle, and a cap having threaded engagement. with the thread of larger diameter.

2. A case of the character described, comprising a body portion having at its upper end a pluralityof exterior threads of (lif-v ferent diameters, a vacuum receptacle located therein, a sleeve threaded at its lower edge, overlying and engaging with the smaller thread on the case, its upper end being apertured to engage said receptacle, and a cap having threaded engagement with the larger thread.

3. A case of the character described hav ing a plurality of exterior threads of different diameters at its upper end, the smaller thread being arranged immediately above the larger. a vacuum receptacle located therein. a sleeve provided for threaded engagement with the exterior of the thread of smaller diameter and apertured at its upper end to engage said receptacle, and a cap enveloping said sleeve and having threaded engagement with the thread of larger diameter.

4. A case for vacuum receptacles, a sleeve and an inclosing cap, said sleeve and cap being secured to said ca'se exteriorly thereof and independently of one another.

WILLIBERT SIMPSON.

Witnesses H. MILLAR, WINNIFRED JACK. 

